So you’ve heard of every kind of pop-up shop, from art galleries to vegan kitchens. Now you can add the Pop Up Gay Bar to your list. It’s not actually a bar or even a specific location. It’s more of a spontaneous meetup site where Bay Area LGBTers can plan fun outings, so to speak, through www.popupgaybar.com.

“It’s basically a location-aware email,” says Brian McConnell, part of the crew behind the original Guerrilla Queer, a flash mob that careened about greater S.F. in the early 2000s.

With this, you sign up with your ZIP code, and get an invite when someone organizes a nearby event. Like last week, three of the Sisters of Perpetual Indulgence led a group of about 30 people on a fairy-on-ferry ride from San Francisco to Oakland for drinks at the First and Last Chance Saloon, then for some chicken and waffles.

The next planned “adult field trip” will be on Folsom Weekend on Sept. 19. “Destination TBA,” McConnell says, “but we’ll be turning one or more tourist traps into leather bars — could be Tonga Room, or Harry Denton’s, or. …” You don’t have to wait, though. The idea is for people to set up their own fun events. So, get poppin’!

E.T., swim home

My biggest fear is that space aliens will exterminate the Earth to prevent the cosmic spread of ice-bucket-challenge memes and TV shows like “Dating Naked.” But perhaps my fear and shame for humanity is misguided.

It’s not clear how they know this, but the Walnut Creek Aquanuts seem to have a solid grasp on the alien perspective. At their 45th Annual Aquanuts Spectacular Synchronized Swimming Show on Friday to Aug. 31, they’ll perform “Earth Odyssey,” a swimming routine that “celebrates the Earth as seen through the eyes of extraterrestrials.” More than 100 swimmers — from beginners to Olympians — will perform natatorific feats with their superhuman abilities at the Clarke Memorial Swim Center at Walnut Creek’s Heather Farm Park. Tickets are $10 to $20; 925-934-4792, www.aquanuts.org. It will surely be a beautiful show, implying E.T.s may actually see mankind’s underlying charms. Probably with X-ray vision.

Book now!

Clearly some PR folks are space cadets because the folks at Ultimate Charters just emailed me a news release about renting a yacht for the 2015 Cannes Film Festival. I’m going to be busy that year, so I’ll pass on this info for your early booking needs.

For a mere 5,000 to 25,000 euros, you can rent a yacht to “organize cocktails, dinners, parties and VIP accommodations,” docked next to the Palais des Festivals Convention Center. The vessel will also serve as your own private five-star hotel with a crew “always on hand to attend to your every need.” I need to change my email address.

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